Old cathedral clock in Prague

Opening hours

Registration Desk and Reading Halls:
08:00–19:00, Monday–Friday
09:00–16:00, Saturdays

All other departments:
08:00–16:30, Monday–Friday

Official holidays for all departments for 2025

DateDay of weekOfficial holiday
1 JanuaryWednesdayNew Year
3 MarchMondayBulgaria’s National Holiday
18 – 21 April Friday – MondayEaster
1 MayThursdayInternational Labor day
6 MayTuesdayDay of Bravery and Bulgarian army
24 – 26 MaySaturday – MondayDay of the Holy Brothers Cyril and Methodius, of the Bulgarian alphabet, education and culture and of the Slavonic literature (24 May)
6 – 8 SeptemberSaturday – MondayUnification Day (6 September)
22 SeptemberMondayBulgaria Independence day
1 NovemberSaturdayDay of the National Enlighteners
24 – 27 DecemberWednesday – SaturdayChristmas

About us

Catalogues

Latest news